.include 	"m8def.inc"
;reset & interrupts
		rjmp main		;1 Reset
		rjmp inth0		;2 Ext Int 0
		rjmp inth1		;3 Ext int 1
		reti			;4
		reti			;5
		reti			;6
		reti			;7
		reti			;8
		reti			;9
		rjmp inth1		;10 TC0 overflow
		reti			;11
		reti			;12
		reti			;13
		reti			;14
		reti			;15
		reti			;16
		reti			;17
		reti			;18
		reti			;19

;Start
main:	        ldi	r16,0x02
		out sph,r16	;stack H initialisieren
		ldi r16,0x02
		out spl,r16	; stack L initialisieren

                ldi r16,0x00	; Port D Eingang
		out ddrd,r16

		ldi r16,0xff	; Port B Ausgang
		out ddrb,r16

		ldi r16,0b00001010	; Ext Int 0 und 1 Flanke
		out mcucr,r16
		ldi r16,0b11000000	; Ext Int 0 und 1 Enable
		out gicr,r16


		ldi r16,0b00000101 	;vorteiler
		out TCCR0, r16		;timer0 / 1024
		ldi r16,0b00000001	; interrupt maskieren
		out timsk, r16		; timer interrupt bei overflow

		ldi r17,0xfe		;Preset
		out tcnt0,r17

		sei

mloop:	        nop
		rjmp mloop
		
inth0:	        cli
		inc r16
		out PORTB,r16
		sei
		reti

inth1:	        cli
		dec r16
		out PORTB,r16
		sei 
		reti